Journal article
Single-channel directly detected optical-OFDM towards higher spectral efficiency and simplicity in 100 Gb/s ethernet and beyond
L Mehedy, M Bakaul, undefined Ampalavanapillai Nirmalathas
Journal of Optical Communications and Networking | OPTICAL SOC AMER | Published : 2011
Abstract
The recently proposed IEEE P802.3ba 100 Gb/s Ethernet (100 GbE) standard has adopted 100 Gb/s transmission over 10 and 40 km of single-mode fiber (SMF) using four-channel (4 × 25Gb/s) wavelength-division-multiplexed (WDM) systems, which is neither cost-effective nor spectrally efficient compared with a single-channel system exploiting the combination of higher-order modulations and optical orthogonal frequency division multiplexing (O-OFDM). This paper demonstrates that a spectrally efficient (4 bits/s/Hz) single-channel 100 Gb/s system can be designed based on 64-quadrature amplitude modulation (64-QAM) and directly detected O-OFDM (DDOOFDM) with an effective OFDM signal bandwidth of 24 GHz..
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Funding Acknowledgements
NICTA is funded by the Australian Government as represented by the Department of Broadband, Communications and the Digital Economy and the Australian Research Council through the ICT Centre of Excellence program.